Re: st: sum issue (wrong values)

[Nick Cox <njcoxstata@gmail.com>]

That does look puzzling. Three of us suggested that value labels might
be getting in the way, but there are none.
I don't have any further suggestions, beyond wondering whether your
executable is corrupted. Can you get the same results from

. list in 1/10

immediately before or after the -summarize-?

Nick

On Wed, Oct 24, 2012 at 11:33 AM, Christian Bärtsch
<christian.baertsch@student.unisg.ch> wrote:
> Thanks Nick - sorry I am only getting used to the correct terms.
>
> Yes it is correct, that I am looking at the -summarize- command in stata.
>
>
> . sum latency_int
>
>     Variable |       Obs        Mean    Std. Dev.       Min        Max
> -------------+--------------------------------------------------------
>  latency_int |      5760    1102.242    700.1589          2       1999
>
> . describe latency_int
>
>               storage  display     value
> variable name   type   format      label      variable label
> -------------------------------------------------------------------------------
> latency_int     int    %8.0g       latency_int
>
>
> .
> . count
>  5760
>
> .
> . summarize latency_int, detail
>
>                          latency_int
> -------------------------------------------------------------
>       Percentiles      Smallest
>  1%           14              2
>  5%           57              2
> 10%        122.5              2       Obs                5760
> 25%        377.5              2       Sum of Wgt.        5760
>
> 50%       1221.5                      Mean           1102.242
>                         Largest       Std. Dev.      700.1589
> 75%         1779           1998
> 90%         1902           1998       Variance       490222.5
> 95%         1948           1998       Skewness      -.2200922
> 99%         1988           1999       Kurtosis       1.417508
>
> And here also an extract from list
>
> . list latency_int
>
>       +----------+
>       | latenc~t |
>       |----------|
>    1. |     4720 |
>    2. |     3923 |
>    3. |     1844 |
>    4. |     1435 |
>    5. |     2955 |
>       |----------|
>    6. |     1483 |
>    7. |     3459 |
>    8. |     1004 |
>    9. |     1716 |
>   10. |     1372 |
>       |----------|
>
> Thanks.
>
>
> 2012/10/24 Nick Cox <njcoxstata@gmail.com>:
>> This is ambiguous as between the -summarize- command (which can be
>> abbreviated -sum-) and the -sum()- function, which gives cumulative or
>> running sums, although it seems you mean the first. In Stata (not
>> "STATA") commands and functions are quite different families.
>>
>> Even then, you must show us exactly what you typed and exactly what
>> Stata did by copying output. Otherwise it is difficult to guess what
>> is going on. Does -latency_int- have value labels, which are what you
>> see when you -list-, but not what are -summarize-d? You should show us
>> the results of
>>
>> describe latency_int
>> count
>> summarize latency_int, detail
>>
>> Nick
>>
>> On Wed, Oct 24, 2012 at 11:13 AM, Christian Bärtsch
>> <christian.baertsch@student.unisg.ch> wrote:
>>
>>> I have a issue using the sum function of STATA. I have a data set,
>>> where I have a variable called latency_int (type: int; and something
>>> over 5700 values). I use the command sum(latency_int). There I get the
>>> minimum of 2 and the maximum of 1999 even though the data set contains
>>> values from 44 to 81000 (those values are shown when I use
>>> list(latency_int). It must be a pretty basic mistake, however I have
>>> not been able to come up with a solution for days.

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